The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2013
Filed:
Jan. 03, 2008
Yoshihiro Tsuchiya, Tokyo, JP;
Tomohito Mizuno, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Yoshihiro Tsuchiya, Tokyo, JP;
Tomohito Mizuno, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Shinji Hara, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A giant magneto-resistive effect device (CPP-GMR device) having the CPP (current perpendicular to plane) structure comprising a spacer layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked one upon another with the spacer layer interposed between them, with a sense current applied in a stacking direction, wherein the spacer layer comprises a first nonmagnetic metal layer and a second nonmagnetic metal layer, each made of a nonmagnetic metal material, and a semiconductor oxide layer interposed between the first nonmagnetic metal layer and the second nonmagnetic metal layer, the semiconductor oxide layer that forms a part of the spacer layer contains zinc oxide as its main component wherein the main component zinc oxide contains an additive metal, and the additive metal is less likely to be oxidized than zinc.